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1. 发明专利

JP2013030493A Surface light source device 有权
标题翻译：表面光源设备
公开(公告)号：JP2013030493A
公开(公告)日：2013-02-07
申请号：JP2012243532
申请日：2012-11-05
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NISHITANI RENA , SASAGAWA TOMOHIRO , NIIKURA EIJI , KOJIMA KUNIKO , SOMEYA JUN , SUGIURA HIROAKI , TSUTSUMI KAZUHIKO , NAGASE AKIHIRO
IPC分类号： F21S2/00
CPC分类号： G02F1/133615 , G02B6/002 , G02B6/003 , G02B6/0036 , G02B6/0061 , G02B6/0068 , G02B6/0076 , G02F2001/133614 , G02F2001/133624
摘要： PROBLEM TO BE SOLVED: To enable a surface light source device to display image with an expanded color reproduction range, while suppressing deterioration of light utilization efficiency.SOLUTION: The surface light source device 303 includes a first light source 6 which emits first light of a point-like spatial luminance distribution, a second light source 10 which emits second light having a divergence angle larger than that of the first light, a pillar-like light guide element 5 which makes the first light enter from a first light incident face provided at the end part and changes the point-like spatial luminance distribution into a linear spatial luminance distribution, and emits from a first light-emitting face provided in the side face, and makes the second light from a side face different from the first light-emitting face and emits from the first light-emitting face, and a plate-shape light guide plate 811 which makes enter the first light 61 and the second light 62 which have become the linear spatial luminance distribution from a second light incident face 811a provided in the side face and changes the first light and the second light having become the linear spatial luminance distribution into planar light, and emits from a second light-emitting face. In the light guide element 5, the first light-emitting face is arranged opposed to the second light incident face 811a.
摘要翻译：要解决的问题：为了使表面光源装置能够在抑制光利用效率的劣化的同时显示具有扩大的色彩再现范围的图像。解决方案：表面光源装置303包括发射点状空间亮度分布的第一光的第一光源6，发射具有大于第一光的发散角的第二光的第二光源10 ，使第一光从设置在端部的第一光入射面入射的柱状导光元件5，将点状空间亮度分布变更为线状空间亮度分布，从第一发光并且使来自与第一发光面不同的侧面的第二光从第一发光面发射，并且进入第一光61的板状导光板811 和从设置在侧面的第二光入射面811a变为线性空间亮度分布的第二光62，并且改变已经成为线的第一光和第二光空间亮度分布成平面光，并从第二发光面发射。在导光元件5中，第一发光面与第二光入射面811a相对配置。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2010231184A Projection display apparatus 审中-公开
标题翻译：投影显示设备
公开(公告)号：JP2010231184A
公开(公告)日：2010-10-14
申请号：JP2009262087
申请日：2009-11-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONDO JUN , KOJIMA KUNIKO , SASAGAWA TOMOHIRO
IPC分类号： G03B21/14 , G02B5/02 , G02B19/00 , G02B27/18 , G03B21/00
CPC分类号： G03B21/28 , G03B21/208
摘要： PROBLEM TO BE SOLVED: To provide a projection display apparatus that displays a high-quality image by efficiently reducing scintillation, while suppressing reduction in use efficiency of light from a light source. SOLUTION: The projection display apparatus includes: a condensing optical system 1 for emitting light from a light source; a light valve 2 having an image-forming region 2a for modulating incident light and emitting image light; a lighting optical system 4 for guiding the light from the condensing optical system 1 to the image-forming region 2a; a projection optical system 3 for enlarging and projecting the image light emitted from the image-forming region 2a; and a diffusion device 5 which is located in the vicinity of a position conjugated to the image forming region 2a in the lighting optical system 4 and has a structure in which a plurality of microscopic optical elements are regularly arranged on a reference surface perpendicular to light incident from the lighting optical system 4. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种通过有效地减少闪烁来显示高质量图像的投影显示装置，同时抑制来自光源的光的使用效率的降低。解决方案：投影显示装置包括：聚光光学系统1，用于从光源发射光; 具有用于调制入射光并发射图像光的图像形成区域2a的光阀2; 用于将来自聚光光学系统1的光引导到图像形成区域2a的照明光学系统4; 用于放大和投射从图像形成区域2a发射的图像光的投影光学系统3; 以及扩散装置5，其位于与照明光学系统4中的图像形成区域2a共轭的位置附近，并且具有多个微观光学元件规则地布置在垂直于光入射的参考表面上的结构来自照明光学系统4.版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2009063945A Projection liquid crystal display device 审中-公开
标题翻译：投影液晶显示装置
公开(公告)号：JP2009063945A
公开(公告)日：2009-03-26
申请号：JP2007233596
申请日：2007-09-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMADA AKIHIRO , SASAGAWA TOMOHIRO , KUWATA MUNEHARU , SAMEJIMA KENJI
IPC分类号： G02F1/133 , G02F1/13 , G02F1/13357 , G02F1/1347 , G02F1/139 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a projection liquid crystal display device with a simple structure which prevents etendue from increasing and can supply large current of a short-time rating or over to a solid light source.
SOLUTION: The projection liquid crystal display device includes a first LED light source 2a and a second LED light source 2b that conduct time-sharing drive alternately, a polarization split element 10 that combines and projects a light flux projected from each of a first lens group 7a and a second lens group 7b on the same light path, illumination optics 4 equipped with a liquid crystal element 11 that turns the light flux projected from the polarization split element 10 into a linearly polarized beam of the same polarization direction, and a projection optics 5 that projects the light flux projected from the illumination optics 4 to a screen 6. The liquid crystal element 11 projects the linearly polarized beam in the same polarization direction at all times by synchronizing with the time-sharing drive of the first LED light source 2a and the second LED light source 2b and changing the polarization direction alternately.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有简单结构的投影液晶显示装置，其可以防止电位增加并且可以提供短时间等级的大电流或超过固体光源。解决方案：投影液晶显示装置包括交替进行分时驱动的第一LED光源2a和第二LED光源2b，将从各自的投射的光束组合投影的偏振光分离元件10 第一透镜组7a和第二透镜组7b在相同的光路上，装备有将从偏振分束元件10投射的光束转换成具有相同偏振方向的线偏振光束的液晶元件11的照明光学器件4，以及将从照明光学器件4投射的光束投射到屏幕6的投影光学器件5.液晶元件11通过与第一LED的分时驱动同步而始终以相同的偏振方向投射线偏振光束光源2a和第二LED光源2b，并且交替地改变偏振方向。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008256989A Light diffusion element, screen and image projection apparatus 有权
标题翻译：光扩散元件，屏幕和图像投影设备
公开(公告)号：JP2008256989A
公开(公告)日：2008-10-23
申请号：JP2007099782
申请日：2007-04-05
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KUWATA MUNEHARU , SASAGAWA TOMOHIRO , SOMEYA JUN
IPC分类号： G02B5/02 , G02F1/13 , G02F1/1335 , G03B21/10 , G03B21/62
CPC分类号： G02F1/1334 , G02F1/133504 , G09G3/001 , G09G2300/0443 , G09G2320/0233 , G09G2320/0242
摘要： PROBLEM TO BE SOLVED: To provide a light diffusion element capable of easily reducing scintillation with a simple configuration. SOLUTION: The light diffusion element comprises: a light diffusion layer which changes light scattering intensity in accordance with the magnitude of an application voltage and diffuses incident light; transparent segment electrodes 62a which are contacted by pressing with a first area on the light diffusion layer on one main surface side of the light diffusion layer; transparent segment electrodes 62b which are contacted by pressing with a second area; a counter electrode which is contacted by pressing with the light diffusion layer on the other side main surface on the light diffusion layer; and a voltage application means which applies a prescribed voltage between the transparent segment electrodes 62a, 62b and the counter electrode, wherein the light diffusion layer is contacted by pressing with the transparent segment electrodes 62a, 62b such that both of the first area and second area are included in one pixel of a display image, and the voltage application means temporally changes the voltage applied between the transparent segment electrodes 62a and the counter electrode and the voltage applied between the transparent segment electrodes 62b and the counter electrode. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够以简单的构造容易地减少闪烁的光漫射元件。光散射元件包括：光扩散层，其根据施加电压的大小改变光散射强度并扩散入射光; 透光段电极62a，其通过与光扩散层的一个主表面侧上的光扩散层上的第一区域按压而接触; 透明段电极62b通过与第二区域的压制接触; 相对电极，其通过与光扩散层上的另一侧主表面上的光漫射层按压而接触; 以及在透明段电极62a，62b和对电极之间施加预定电压的电压施加装置，其中光扩散层通过与透明段电极62a，62b按压而接触，使得第一区域和第二区域包括在显示图像的一个像素中，并且电压施加装置暂时地改变施加在透明段电极62a和对电极之间的电压以及施加在透明段电极62b和对电极之间的电压。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008256861A Projection image display device 有权
标题翻译：投影图像显示设备
公开(公告)号：JP2008256861A
公开(公告)日：2008-10-23
申请号：JP2007097705
申请日：2007-04-03
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： WATANABE NORIHIRO , MICHIMORI ATSUSHI , SASAGAWA TOMOHIRO , SUGIURA HIROAKI
IPC分类号： G03B21/62 , G03B21/10 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To obtain a projection image display device capable of achieving high-quality image display, where the occurrence of scintillation is reduced.
SOLUTION: The projection image display device includes: an optical engine part which emits light in accordance with an input image signal; a Fresnel lens on which the light emitted from the optical engine part is made incident and which emits the light as parallel beams; a diffusion part which diffuses the parallel beams emitted from the Fresnel lens and emits them as diffused light; a driving part which consecutively moves the Fresnel lens on a predetermined orbit on a plane parallel with a plane from which the parallel beams are emitted or consecutively moves the diffusion part on a predetermined orbit on a plane parallel with a plane from which the diffused light is emitted; a supporting part which supports at least the Fresnel lens and the diffusion part; and a coupling part which couples the Fresnel lens with the supporting part movably in the in-plane direction of the Fresnel lens or couples the diffusion part with the supporting part movably in the in-plane direction of the diffusion part.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够实现高质量图像显示的投影图像显示装置，其中闪烁的发生被减少。解决方案：投影图像显示装置包括：根据输入图像信号发光的光引擎部分; 从光学引擎部发出的光入射的菲涅尔透镜，并将光作为平行光发射; 扩散部分，其漫射从菲涅尔透镜发射的平行光束并将其作为漫射光发射; 驱动部件，其将菲涅耳透镜在平行于平行光束的平面平行的平面上连续地移动菲涅尔透镜，或者在与扩散光的平面平行的平面上连续地将扩散部移动到预定轨道上发射; 至少支撑菲涅耳透镜和扩散部分的支撑部分; 以及耦合部分，其将菲涅尔透镜与支撑部件在菲涅尔透镜的面内方向可移动地耦合，或者使扩散部分与支撑部件在扩散部分的面内方向上可移动地耦合。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008241768A Projection type display device 有权
标题翻译：投影型显示设备
公开(公告)号：JP2008241768A
公开(公告)日：2008-10-09
申请号：JP2007078069
申请日：2007-03-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMADA AKIHIRO , SASAGAWA TOMOHIRO , KOJIMA KUNIKO
IPC分类号： G03B21/14 , G02B19/00 , G02B27/09 , G03B21/00 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a projection type display device capable of achieving simplification, miniaturization and reduction of cost of structure and making illuminance irregularity of a video image projected to a screen small.
SOLUTION: The projection type display device 1 is equipped with a lens means 4 condensing light emitted from a light source system 3, a pillar type optical element 5 uniformizing intensity distribution of the condensed light and outputting the light, a reflection type light valve 2 irradiated with the uniformized light, and a projection optical system 7 enlarging and projecting an image displayed on the reflection type light valve 2. The lens means 4 has a first condensing lens 4R and a second condensing lens 4R arranged in the longitudinal direction of a cross section orthogonal to the optical axis C of the pillar type optical element 5, and the first condensing lens 4L and the second condensing lens 4R have the same radius of curvature, and arranged symmetrically with the optical axis C of the pillar type optical element 5 as center, and the eccentric position of the first condensing lens 4L is on the second condensing lens 4R side from the optical axis C, and the eccentric position of the second condensing lens 4R is on the first condensing lens 4L side from the optical axis C.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够实现简化，小型化和降低结构成本并使投影到屏幕的视频图像的照度不均匀性小的投影型显示装置。＆lt; P＆gt;解决方案：投影型显示装置1配备有会聚从光源系统3发出的光的透镜装置4，聚光的强度分布均匀化并输出光的柱状光学元件5，反射型光阀2照射均匀化的光，以及投影光学系统7，其放大和投影显示在反射型光阀2上的图像。透镜装置4具有沿纵向方向布置的第一聚光透镜4R和第二聚光透镜4R 与柱状光学元件5的光轴C正交的截面以及第一聚光透镜4L和第二聚光透镜4R具有相同的曲率半径，并且与柱状光学元件5的光轴C对称配置 5为中心，第一聚光透镜4L的偏心位置在光轴C的第二聚光透镜4R侧，偏心位置第二聚光透镜4R的光线从光轴C位于第一聚光透镜4L侧。（C）2009，JPO＆INPIT

7. 发明专利

JP2008147451A Light source device for lighting and image display apparatus 审中-公开
标题翻译：用于照明和图像显示装置的光源装置
公开(公告)号：JP2008147451A
公开(公告)日：2008-06-26
申请号：JP2006333434
申请日：2006-12-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MURASE REINA , INOUE YOKO , SASAGAWA TOMOHIRO
IPC分类号： H01S5/022 , F21S2/00 , F21V5/00 , G03B21/14 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a light source device for lighting which uses a coherent light source and capable of suppressing the effect of speckle with a simple configuration.
SOLUTION: In a coherent light source 2 consisting of a plurality of light emitting points, independent of each other, a plurality of coherent beams 3 emitted from the light emitting points are sufficiently multiplexed by providing a free propagation space 4 for reduced coherence as the entire light source, by utilizing the fact that the coherent beams 3 emitted from the light emitting points are in incoherent relationship each other. Using a light source device 1a for lighting, the effect of speckle can be reduced even with a coherent light source.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用相干光源的照明用光源装置，能够以简单的结构抑制斑点的影响。解决方案：在由多个发光点组成的相干光源2中，彼此独立，从发光点发射的多个相干光束3通过提供用于降低相干性的自由传播空间4被充分地多路复用作为整个光源，通过利用从发光点发射的相干光束3彼此不相干关系的事实。使用用于照明的光源装置1a，即使使用相干光源也能够减少斑点的影响。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007192856A The projection-type image display device 有权
标题翻译：投影类型图像显示设备
公开(公告)号：JP2007192856A
公开(公告)日：2007-08-02
申请号：JP2006008346
申请日：2006-01-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KUWATA MUNEHARU , SASAGAWA TOMOHIRO
IPC分类号： G02B17/08 , G02B13/18 , G02B13/24 , G03B21/00 , G03B21/28
摘要： PROBLEM TO BE SOLVED: To provide a projection type image display device which is thinned and reduced in the height of part under a screen. SOLUTION: The projection type image display device includes an illuminating optical system, a light valve 3, a projection optical system, and the screen 6. The projection optical system includes a refractive lens group 4 and a power mirror 5. The light valve 3 is arranged so that the center position is offset in a predetermined direction from the optical axis 10 of the refractive lens group 4. When the diagonal dimension of the light valve 3 is denoted as D1, the dimension of the side in the direction of offset of the light valve 3 is denoted as H1, the diagonal dimension of a projected image on a screen 3 is denoted as Di, the distance from the center of the light valve 3 to the optical axis 10 of the refractive lens group 4 is denoted as L1, and the distance from the center of the projected image on the screen 3 to the optical axis 10 of the refractive lens group is denoted as Li, the projection optical system satisfies the following conditional formulas: 0.8≤Li/ä(Di/D1)×L1} 0.5, and L1/H1≥0.54. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在屏幕下方部分的高度变薄并减小的投影型图像显示装置。投影型图像显示装置包括照明光学系统，光阀3，投影光学系统和屏幕6.投影光学系统包括折射透镜组4和功率反射镜5.光阀3被布置成使得中心位置沿着从折射透镜组4的光轴10预定的方向偏移。当光阀3的对角线尺寸表示为D1时，侧面的尺寸在光阀3的偏移量表示为H1，将屏幕3上的投影图像的对角线尺寸表示为Di，表示从光阀3的中心到折射透镜组4的光轴10的距离作为L1，从屏幕3上的投影图像的中心到折射透镜组的光轴10的距离为Li，投影光学系统满足以下条件式：0.8≤Li/ä（Di / D1）×L1} <1 0.5，Li /äH1×（Di / D1）}> 0.5，L1 /H1≥0.54。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2014026132A Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：JP2014026132A
公开(公告)日：2014-02-06
申请号：JP2012166581
申请日：2012-07-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SASAGAWA TOMOHIRO , NISHITANI REINA , NAKANO NAMI , KOBAYASHI NOBUTAKA
IPC分类号： G02F1/13357 , F21S2/00 , F21Y101/02
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device having a backlight which uses both of an LED light source and a laser light source, can separately control temperatures of the light sources, and ensures a sufficient product service life while maintaining optical performances such as uniformity of illumination.SOLUTION: The backlight includes: a backlight chassis having a light-exiting face; a diffusion plate, a prism sheet and a reflection polarizing plate successively disposed as opposing to the light-exiting face of the backlight chassis; laser light sources disposed along one end face of the backlight chassis; LED light sources disposed along the other end face of the backlight chassis; laser light guide rods stretched into long rods to allow laser light from the laser light sources to propagate and to diffuse and emit the laser light into the backlight chassis; and LED light guide rods stretched into long rods to allow LED light from the LED light sources to propagate and to diffuse and emit the LED light into the backlight chassis.
摘要翻译：要解决的问题：为了提供具有使用LED光源和激光光源两者的背光源的液晶显示装置，可以分别控制光源的温度，并且保持足够的产品使用寿命，同时保持光学性能如作为照明的均匀性。解决方案：背光包括：具有光出射面的背光底盘; 依次配置为与背光源底板的光出射面相对的漫射板，棱镜片和反射偏振片; 沿着所述背光源底座的一个端面设置的激光光源; LED光源沿着背光源底座的另一端面设置; 激光导杆拉伸成长棒，以允许来自激光光源的激光传播并将激光漫射并发射到背光底盘中; 并将LED导光棒拉伸成长棒，以使来自LED光源的LED光线传播并扩散并将LED光发射到背光底盘中。

10. 发明专利

JP2010277901A Liquid crystal display 审中-公开
标题翻译：液晶显示器
公开(公告)号：JP2010277901A
公开(公告)日：2010-12-09
申请号：JP2009130427
申请日：2009-05-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MURASE REINA , SASAGAWA TOMOHIRO , INOUE YOKO , SUGIURA HIROAKI
IPC分类号： H05B37/02 , G02F1/133 , G02F1/13357 , G09F9/00 , G09G3/20 , G09G3/34 , G09G3/36
CPC分类号： Y02B20/40
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a liquid crystal display having a change function of a viewing angle without using an expensive and active optical element, and for reducing power consumption.
SOLUTION: This liquid crystal display includes a liquid crystal display panel, and a plurality of backlight units disposed on the back side of the liquid crystal panel by superposing them parallel to the display surface of the liquid crystal display panel. A plurality of the backlight units are individually equipped with light sources, and are structured so as to emit light while having mutually different light distributions. The emission amount of each of a plurality of the backlight units is controlled for each backlight unit, and thereby, the amount of emission of a plurality of the backlight units is individually controlled while keeping luminance in the front direction of the display surface of the liquid crystal display panel at prescribed luminance.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了廉价地提供具有视角变化功能的液晶显示器，而不使用昂贵且有效的光学元件，并且用于降低功耗。解决方案：该液晶显示器包括液晶显示面板和多个背光单元，其通过将液晶显示面板平行于液晶显示面板的显示面叠置而设置在液晶面板的背面。多个背光单元分别配备有光源，并且被构造成在具有相互不同的光分布的同时发光。对于每个背光单元控制多个背光单元中的每一个的发光量，从而分别控制多个背光单元的发光量，同时保持液体的显示表面的正面方向上的亮度水晶显示面板。版权所有（C）2011，JPO＆INPIT

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